There are significant challenges in describing the composite nucleus spectroscopy in holography. The candidate holographic model should describe the nuclear mass as a function of the atomic \(Z\)  and mass \(A\)  numbers. Another important characteristic that must be addressed is holographic spectroscopy. In the case of hadrons, the spectra are organized by defined mass poles, the so-called Regge Trajectories, where each excited state defines a new hadron in the family, as in the AdS/QCD bottom-up radial case [1]}, [2]}, [3]}. In the nuclear case, the excited nuclear states come from transitions defining metastable states that do not differ so much from the nucleus ground state mass. Thus, the holographic nuclear mass spectrum should not have a large mass gap compared to the ground state mass.
